I have a spreadsheet where I've documented all of the checks I need for my database, which comes out to 250 geometry on geometry checks. I have columns for every property of the geom_on_geom check and it seems like someone should be able to script these to auto-generate the rbj file. The rbj file does appear to be just an xml file but each check does appear to have a 'key' that is some kind of GUID. If it weren't for this GUID key, I think we could easily generate an XML file from my spreadsheet formatted just like the RBJ file and then just change the extension. Anyway tried this?